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Sci Total Environ

Title:		Dynamic variations of phthalate esters in PM(2.5) during a pollution episode
Author(s):		Li X; An Z; Shen Y; Yuan Y; Duan F; Jiang J;
Address:		"State Key Joint Laboratory of Environmental Simulation and Pollution Control, School of Environment, Tsinghua University, Beijing, China. State Key Joint Laboratory of Environmental Simulation and Pollution Control, School of Environment, Tsinghua University, Beijing, China. Electronic address: jiangjk@tsinghua.edu.cn"
Journal Title:		Sci Total Environ
Year:		2022
Volume:		20211210
Issue:
Page Number:		152269 -
DOI:		10.1016/j.scitotenv.2021.152269
ISSN/ISBN:		1879-1026 (Electronic) 0048-9697 (Linking)
Abstract:		"Phthalate esters (PAEs) as hazardous air pollutants can be easily released during the life cycle of plastic products. In this study, a thermal desorption aerosol comprehensive two-dimensional gas chromatography mass spectrometer coupled with a dual-trap was developed and used to measure the hourly-resolved PAEs characteristics in atmospheric PM(2.5) at an urban site. Dimethyl phthalate (DMP), diethyl (DEP), dibutyl (DnBP), benzyl butyl (BBP), di(2-ethylhexyl) (DEHP), and di-n-octyl phthalate (DnOP) in PM(2.5) were analyzed. The most abundant compounds were DEHP and DMP, followed by DnBP and DEP. The mass concentrations of the detected PAEs are comparable to those at other urban sites measured using offline methods with a lower time resolution. The concentrations of PAEs showed intense change with the variation of PM(2.5) mass concentration. The proportion of DEHP increased while that of DMP decreased with the increase in PM(2.5) pollution. Positive correlations between PAEs and PM(2.5), organic carbon, and elemental carbon were observed, while PAEs had negative correlation with the ambient temperature. Our observation provides evidences on understanding the volatile and semi-volatile PAEs in the ambient aerosols"
Keywords:		China Dibutyl Phthalate/analysis Environmental Pollution *Esters/analysis Particulate Matter *Phthalic Acids/analysis Plastics Ambient aerosols Comprehensive two-dimensional gas chromatography Diurnal variation Online measurement Phthalate esters;
Notes:		"MedlineLi, Xue An, Zhaojin Shen, Yicheng Yuan, Yi Duan, Fengkui Jiang, Jingkun eng Netherlands 2021/12/14 Sci Total Environ. 2022 Mar 1; 810:152269. doi: 10.1016/j.scitotenv.2021.152269. Epub 2021 Dec 10"